<script setup lang="ts">
import { computed, ref } from 'vue'

// 定义水果对象的类型
interface Fruit {
  id: number
  icon: string
  isChecked: boolean
  num: number
  price: number
}
const allSelect = computed({
  get() {
    return fruitList.value.every((item) => item.isChecked)
  },
  set(value) {
    fruitList.value.forEach((item) => (item.isChecked = value))
  }
})
// 水果列表
const fruitList = ref<Fruit[]>([
  {
    id: 1,
    icon: 'https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/ll.png',
    isChecked: false,
    num: 2,
    price: 6
  },
  {
    id: 2,
    icon: 'https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/smt.png',
    isChecked: false,
    num: 7,
    price: 20
  },
  {
    id: 3,
    icon: 'https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/tg.png',
    isChecked: false,
    num: 3,
    price: 40
  },
  {
    id: 4,
    icon: 'https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/xg.png',
    isChecked: false,
    num: 10,
    price: 3
  },
  {
    id: 5,
    icon: 'https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/yl.png',
    isChecked: false,
    num: 20,
    price: 34
  }
])
const del = (id: number) => {
  fruitList.value = fruitList.value.filter((item) => item.id !== id)
}

// const allSelectChange = () => {
//   // allSelect.value = !allSelect.value
//   allSelect.value
//     ? fruitList.value.forEach((item) => (item.isChecked = true))
//     : fruitList.value.forEach((item) => (item.isChecked = false))
// }

const sum = () => {
  let num = 0
  const list = fruitList.value.filter((item) => item.isChecked)
  list.forEach((item) => (num += item.price * item.num))
  return num
}
const count = () => {
  let num = 0
  const list = fruitList.value.filter((item) => item.isChecked)
  list.forEach((item) => (num += item.num))
  return num
}
</script>

<template>
  <div class="app-container" id="app">
    <!-- 顶部banner -->
    <div class="banner-box">
      <img src="https://hongm-1312445828.cos.ap-nanjing.myqcloud.com/sg_top.png" alt="" />
    </div>
    <!-- 面包屑 -->
    <div class="breadcrumb">
      <span>🏠</span>
      /
      <span>购物车</span>
    </div>
    <!-- 购物车主体 -->
    <div class="main" v-if="fruitList.length > 0">
      <div class="table">
        <!-- 头部 -->
        <div class="thead">
          <div class="tr">
            <div class="th">选中</div>
            <div class="th th-pic">图片</div>
            <div class="th">单价</div>
            <div class="th num-th">个数</div>
            <div class="th">小计</div>
            <div class="th">操作</div>
          </div>
        </div>
        <!-- 身体 -->
        <div v-for="item in fruitList" :key="item.id" class="tbody">
          <div class="tr" :class="{ active: item.isChecked }">
            <div class="td"><input type="checkbox" checked v-model="item.isChecked" /></div>
            <div class="td">
              <img :src="item.icon" alt="" />
            </div>
            <div class="td">{{ item.price }}</div>
            <div class="td">
              <div class="my-input-number">
                <button class="decrease" @click="item.num >= 1 ? item.num-- : item.num">-</button>
                <span class="my-input__inner">{{ item.num }}</span>
                <button class="increase" @click="item.num++">+</button>
              </div>
            </div>
            <div class="td">{{ item.price * item.num }}</div>
            <div class="td" @click="del(item.id)"><button>删除</button></div>
          </div>
        </div>
      </div>
      <!-- 底部 -->
      <div class="bottom">
        <!-- 全选 -->
        <label class="check-all">
          <!-- <input type="checkbox" v-model="allSelect" @click="allSelectChange()" /> -->
          <input type="checkbox" v-model="allSelect" />
          全选
        </label>
        <div class="right-box">
          <!-- 所有商品总价 -->
          <span class="price-box"
            >总价&nbsp;&nbsp;:&nbsp;&nbsp;¥&nbsp;<span class="price">{{ sum() }}</span></span
          >
          <!-- 结算按钮 -->
          <button class="pay">结算{{ count() }}</button>
        </div>
      </div>
    </div>
    <!-- 空车 -->
    <div class="empty" v-else>🛒空空如也</div>
  </div>
</template>

<style scoped>
@import './style/inputnumber.css';
@import './style/index.css';
</style>